Abstract:
A device for automatic determination of suspended solids content in water comprises an automatic sample liquid collection unit, an automatic specimen preparation unit, an automatic filter paper feeding unit, an automatic filter paper transfer unit, an automatic suspended solids filtration unit, an automatic drying unit, an automatic weighing and display unit and an automatic process control unit. A sample liquid automatically collected is prepared automatically to produce a test specimen. The specimen is filtered through a sheet of filter paper supplied by the automatic filter paper feeding unit. The filter paper on which the suspended solids of the specimen are deposited in consequence of the filtration is dried by the automatic drying unit and thereafter weighed. The weight thus taken is automatically converted into a corresponding electrical quantity and forwarded to an arithmetic circuit, in which the suspended solids content of the given liquid is calculated and recorded.
Abstract:
A sphere of carbon which encloses an empty space and has pores formed in the shell thereof so as to provide free passage between the interior and the exterior of the sphere is obtained by coating a spherical core with a layer of finely divided coal and subjecting the coated sphere to a heat treatment at a temperature higher than the decomposition temperature of the substance of which the core is formed. The heat treatment causes the core to be thermally decomposed and evacuated from the coat which, by this time, has been hardened to a shell. A lightweight hollow sphere of activated carbon which has been activated not merely on the outer surface of the sphere but equally on the inner surface defining the empty space is produced by calcining for activation the said sphere of finely divided coal, with the said fine pores retained intact.
Abstract:
A paper feeder has a construction such that, while a sucker adapted to transfer individual sheets one by one from a stack of paper is in the process of lifting the uppermost sheet of paper from the top of the stack of paper stored in a paper magazine, air is blown against the sheets of paper adhering to the sucker so as to blow down any extra sheets entrained by the uppermost sheet being removed, whereby the individual sheets of paper are transferred one by one to a desired position without fail.
Abstract:
Partially chlorinated ethers are electrolytically fluorinated in anhydrous hydrogen fluoride. The gas which is produced consequently is passed through water and the aqueous solution of sodium sulfite-sodium hydroxide for the removal of by-products and thereafter cooled and collected. The collected product is a mixture consisting of fluorinated ethers and fluorocarbons. Chlorofluoroethers which the present invention aims to obtain are separated from this mixture by additional treatments of distillation, gas chromatography, etc.
Abstract:
An automatic adaptive controller having a data file previously supplied with various control parameters for a process to be controlled, and detectors for observing the process and disturbances introduced in the process. The data file provides to the process basic operation values, at the beginning of the process. The detectors monitor bits of information which cannot be previously provided from the data file, to automatically detect the characteristics of the process and disturbances so that the process can be controlled under the optimum conditions.
Abstract:
The display system of the present invention produces simplified environment patterns and these simplified patterns are projected on a screen which is assumed to be located a certain distance to the front of the moving body by converting the x-y coordinate of the projected patterns to voltage values, applying these voltage values to an analog electronic circuit constructed in accordance with the equations of the patterns, converting the output electric signals of the analog electronic circuit to electric signals having widths corresponding to the spatial regions, controlling respective color signal generators in proportion to the time widths so that the color signal generators generate color signals corresponding to the color distribution of the environment patterns and producing the environment patterns on a color TV monitor screen by feeding the color signals to the color TV monitor.
Abstract:
A hydrous calcium silicate compsed preponderantly of xonotlite of the shape of rod crystals is produced by adding 0.05 to 3 percent by weight of an alkali to a substantially equimolar mixed slurry of silicic acid and calcium oxide and subjecting the resultant mixture to hydrothermal reaction at 200* to 250* C under the pressure of saturated steam.
Abstract:
A HIGHER FATTY ACID, A HIGHER ALCOHOL, A HIGHER ALDEHYDE OR A FUNCTIONAL DERIVATIVE THEREOF HAVING 12 OR MORE CARBON ATOMS IS INCORPORATED AS AN AGENT FOR ACCELERATING THE FORMATION OF A-GALACTOSIDASE INTO A BASIC CULTURES MEDIUM CONTAINING CARBON SOURCES, NITROGEN SOURCES AND INORGANIC SALTS. WHEN AN A-GALACTOSIDASE PRODUCING MOLD IS CULTURED IN THE CULTURE MEDIUM THUS PREPARED, AGALACTOSIDASE IS PRODUCED IN HIGH YIELDS IN A SHORT PERIOD OF CULTURING TIME.
Abstract:
AN IMPROVED METHOD IS DISCLOSED FOR DISCHARGING PARTICULATE SOLIDS FROM A HIGH PRESSURE VESSEL, WHICH METHOD IS CHARACTERIZED BY MAINTAINING SAID PARTICULATE SOLIDS IN FLUIDIZED STATE IN ADMIXTURE WITH FLUIDS AND THUS KEEPING THE HEAD OF THE PARTICULATE SOLID-FLUIDS AND THUS IN THE VESSEL AND ITS PRESSURE DIFFERENTIAL GREATER THAN THE HEAD OF A CONDUIT CONDUCTING THE FLUID.
Abstract:
This invention is concerned with an automatically controlled hydrostatic bearing. The automatically controlled hydrostatic bearing comprises a hydrostatic bearing which has two opposite bearing recesses each communicating with a fixed linear external restrictor and a pressure-balance type control valve which has its restrictors formed with gaps of parallel plates and which functions so as to keep constant the ratio between the supply pressures to the fixed linear external restrictors and the pressures in the corresponding bearing recesses.